The TYC 20-5221-00 Headlight Assembly is engineered to provide reliable illumination for Nissan Frontier (1998-2000) and Xterra (2000-2001) models. This assembly is designed to meet or exceed FMVSS 108 standards, ensuring compliance with DOT/SAE regulations for photometry and safety. Constructed with durable plastic housing and lens materials, it offers longevity and resistance to environmental factors. The assembly includes halogen bulbs for both high and low beams, facilitating straightforward installation. A special coating on the lens surface prevents hazing and fading, maintaining optimal light output over time. This headlight assembly serves as a direct replacement for the corresponding right-side unit, ensuring a seamless fit and restoring the vehicle's lighting performance.